I don't really know much about graphics cards or much else inside a computer tbh and my graphics card is showing signs i need a new one but how do i know if a graphics card is better than the one i have and if i can have it in my computer any help would be grateful. I have an alienware aurora which i got 4 years ago and it has a radeon HD 5700 in it. If you want to give a suggestion of a graphics card that would be a good upgrade that would be nice too, I mostly play mmo's and can't really afford anything over £150 ($255).